package itheima.Controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import itheima.common.R;
import itheima.entity.Employee;
import itheima.service.EmployeeService;
import lombok.extern.slf4j.Slf4j;
import lombok.val;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.DigestUtils;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;
import java.time.LocalDateTime;

/**
 * @author shkstart
 * @create 2022-09-14-16:54
 */
@Slf4j
@RestController
@RequestMapping("/employee")
public class EmployeeController {

    @Autowired
    private EmployeeService employeeService;

    /**
     * 员工登录
     * @param request
     * @param employee
     * @return
     */
    @PostMapping("/login")
    public R<Employee> login(HttpServletRequest request, @RequestBody Employee employee){

        //1、将页面提交的密码password进行md5加密处理
        String password = employee.getPassword();
         password = DigestUtils.md5DigestAsHex(password.getBytes());

        //2、根据页面提交的用户名username查询数据库
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(Employee::getUsername,employee.getUsername());
        Employee one = employeeService.getOne(queryWrapper);


        //3、如果没有查询到则返回登录失败结果
        if (one == null){
            return R.error("登录失败!!");
        }
        //4、密码比对，如果不一致则返回登录失败结果
        if (!one.getPassword().equals(password)){
            return R.error("登录失败!!");
        }
        //5、查看员工状态，如果为已禁用状态，则返回员工已禁用结果
        if(one.getStatus() == 0){
            return R.error("账号已禁用!!");

        }

        //6、登录成功，将员工id存入Session并返回登录成功结果
        request.getSession().setAttribute("employee",one.getId());
        return R.success(one);

    }

    /**
     * 员工退出
     * @param request
     * @return
     */
    @PostMapping("/logout")
    public R<String> logout(HttpServletRequest request){
        //清理Session中保存的当前登录员工的id
        request.getSession().removeAttribute("employee");
        return R.success("退出成功！");
    }


    @PostMapping
    public R<String> save(HttpServletRequest request,@RequestBody Employee employee){

        log.info("新增员工，员工信息:{}" ,employee.toString());

        //设置初始密码123456，需要进行md5加密处理
        employee.setPassword(DigestUtils.md5DigestAsHex("123456".getBytes()));

//        employee.setCreateTime(LocalDateTime.now());
//        employee.setUpdateTime(LocalDateTime.now());

        //获得当前登录用户的id
//        Long id = (Long) request.getSession().getAttribute("employee");

//        employee.setCreateUser(id);
//        employee.setUpdateUser(id);

        employeeService.save(employee);
        return R.success("新增员工成功 ");
    }

    @GetMapping("/page")
    public R<Page> page(int page,int pageSize,String name){
        log.info("page = {},pageSize = {}, name = {}",page,pageSize,name);


        //构造分页构造器
        Page pageInfo = new Page(page,pageSize);

        //构造条件构造器
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper();
        queryWrapper.like(StringUtils.isNotEmpty(name),Employee::getName,name);

        //添加排序条件
        queryWrapper.orderByDesc(Employee::getUpdateTime);
        //执行查询
        employeeService.page(pageInfo,queryWrapper);
        return R.success(pageInfo);

    }
    @PutMapping
    public R<String> update(HttpServletRequest request,@RequestBody Employee employee){

        log.info(employee.toString());
        Long attribute = (Long) request.getSession().getAttribute("employee");

        long id = Thread.currentThread().getId();
        log.info("线程id:{}",+id);
//        employee.setUpdateTime(LocalDateTime.now());
//        employee.setUpdateUser(attribute);

        employeeService.updateById(employee);

        return R.success("更新成功");
    }

    /**
     * 根据id查询员工信息
     * @param id
     * @return
     */
    @GetMapping("/{id}")
    public R<Employee> getById(@PathVariable Long id){
        log.info("根据id查询员工信息!!");
        Employee byId = employeeService.getById(id);
        if (byId != null){
            return R.success(byId);
        }
        return R.error("查询失败!");
    }

}
